-
1.发明申请公开(公告)号：US20060094363A1
公开(公告)日：2006-05-04
申请号：US11262213
申请日：2005-10-28
申请人： Tae-Sung Kang , Yeon-Woo Lee , Seung-young Park , Ok-Seon Lee , Hyung-Myung Kim , Hye-Ju Oh , Yun-Jik Jang , Woo-Geun Ahn
发明人： Tae-Sung Kang , Yeon-Woo Lee , Seung-young Park , Ok-Seon Lee , Hyung-Myung Kim , Hye-Ju Oh , Yun-Jik Jang , Woo-Geun Ahn
IPC分类号： H04B1/00
CPC分类号： H04W52/42 , H04L5/0007 , H04L5/0032 , H04L5/0037 , H04L5/0044 , H04L5/006 , H04W16/14 , H04W72/082
摘要： An orthogonal frequency division multiple access (OFDMA) communication system. The system has a plurality of cells, divides an entire frequency band into a plurality of subcarrier bands in each cell, and has subchannels that are a set of a preset number of subcarrier bands, respectively. Interference from neighbor cells of the plurality of cells is predicted. A time interval in which interference is absent and a time interval in which the interference is present are classified according to the interference predicted from the neighbor cells. Transmit power is equally distributed and allocated to subchannels capable of being allocated in the time interval in which the interference is absent. Transmit power is adjusted and allocated for the subchannels capable of being allocated such that inference to the neighbor cells does not occur in the time interval in which the interference is present.
摘要翻译： 正交频分多址（OFDMA）通信系统。 该系统具有多个小区，将整个频带划分成每个小区中的多个子载波频带，并且分别具有预设数量的子载波频带的一组子信道。 预测来自多个单元的相邻单元的干扰。 根据从相邻小区预测的干扰，对干扰不存在的时间间隔和存在干扰的时间间隔进行分类。 发射功率被均匀分配并分配给能够在不存在干扰的时间间隔内被分配的子信道。 对能够被分配的子信道进行发送功率的调整和分配，使得在存在干扰的时间间隔内不发生相邻小区的推断。
-
2.发明授权Signal reception apparatus and method for multi-band ultra-wideband communication systems 失效用于多频带超宽带通信系统的信号接收装置和方法公开(公告)号：US07369829B2
公开(公告)日：2008-05-06
申请号：US10915452
申请日：2004-08-11
申请人： Ye-hoon Lee , Seung-young Park , Yong-suk Kim , Wan-jin Kim , Woo-kyung Lee
发明人： Ye-hoon Lee , Seung-young Park , Yong-suk Kim , Wan-jin Kim , Woo-kyung Lee
CPC分类号： H04B1/71637
摘要： A signal reception apparatus and method for communication systems. The signal reception apparatus for communication systems according to the present invention is applicable to communication environments in which a plurality of sub-bands having different frequency bands are sequentially used for communications. An embodiment of the invention has a multi-band index generation unit, a multi-band frequency generation unit, a multiplication unit, a correlation signal reception unit, and a buffer unit. The multi-band index generation unit generates a multi-band index corresponding to a sub-band to which a received signal is transmitted in correspondence with the multi-band index. The multiplication unit outputs a signal obtained by multiplying the received signal by the multi-band frequency. The correlation signal reception unit integrates and outputs the signal of the multiplication unit based on an integral time set in correspondence with the multi-band index. Further, the buffer unit buffers the signal of the correlation signal reception unit to be outputted at a predetermined data rate.
摘要翻译： 一种用于通信系统的信号接收装置和方法。 根据本发明的用于通信系统的信号接收装置可应用于其中具有不同频带的多个子带被顺序地用于通信的通信环境。 本发明的实施例具有多频带索引生成单元，多频带频率生成单元，乘法单元，相关信号接收单元和缓冲单元。 多频带索引生成单元根据多频带索引生成与发送接收信号的子带对应的多频带索引。 乘法单元输出通过将接收信号乘以多频带频率而获得的信号。 相关信号接收单元基于与多频带索引相对应地设定的积分时间积分并输出乘法单元的信号。 此外，缓冲器缓冲以预定数据速率输出的相关信号接收单元的信号。
-
3.发明授权TFI-OFDM transmission/reception systems for UWB communication and methods thereof for mitigating interference from simultaneously operating piconets 有权用于UWB通信的TFI-OFDM发射/接收系统及其方法，用于减轻来自同时操作微微网的干扰公开(公告)号：US08306130B2
公开(公告)日：2012-11-06
申请号：US10890385
申请日：2004-07-14
IPC分类号： H04K1/10
CPC分类号： H04L27/2608 , H04J11/005 , H04L25/0228 , H04L27/2655 , H04L2025/03414
摘要： A TFI-OFDM transmission system for a UWB communication that includes a data generator generating data having a rate corresponding to a transmission speed mode, a convolutional encoder convolutional-encoding the data into a certain number of data groups, an OFDM modulator outputting OFDM symbols by executing an IFFT the data groups a buffer temporarily storing the OFDM symbols to sequentially transmit the OFDM symbols in a time domain at least two times, and a frequency generator generating certain frequencies to transmit the OFDM symbols in a certain number of frequency bands corresponding to transmission channels.
摘要翻译： 一种用于UWB通信的TFI-OFDM传输系统，包括产生具有对应于传输速度模式的速率的数据的数据生成器，将数据卷积编码为一定数量的数据组的卷积编码器，OFDM调制器，其通过 对数据组执行IFFT，临时存储OFDM符号的缓冲器至少在时域中顺序发送OFDM符号两次;以及频率发生器，产生一定频率以在对应于传输的一定数量的频带中发送OFDM符号 频道
-
4.发明申请TFI-OFDM transmission/reception systems for UWB communication and methods thereof for mitigating interference from simultaneously operating piconets 有权用于UWB通信的TFI-OFDM发射/接收系统及其方法，用于减轻来自同时操作微微网的干扰公开(公告)号：US20050047444A1
公开(公告)日：2005-03-03
申请号：US10890385
申请日：2004-07-14
CPC分类号： H04L27/2608 , H04J11/005 , H04L25/0228 , H04L27/2655 , H04L2025/03414
摘要： A TFI-OFDM transmission system includes a data generator generating data having a speed corresponding to a transmission speed mode; a convolutional encoder convolutional-encoding the data, an interleaver bit-interleaving the encoded data, an OFDM modulator inputting a first data group into a positive frequency domain and a second data group into a negative frequency domain, executing an IFFT, and outputting OFDM symbols; a buffer temporarily storing the OFDM symbols in order to sequentially transmit the OFDM symbols in a time domain at least two times; and a frequency generator generating certain frequencies to transmit the OFDM symbols in a certain number of frequency bands corresponding to transmission channels.
摘要翻译： TFI-OFDM传输系统包括产生具有对应于传输速度模式的速度的数据的数据发生器; 对数据进行卷积编码的卷积编码器，对编码数据进行位交织的交织器，将第一数据组输入正频域的OFDM调制器，将第二数据组输入负频域，执行IFFT，输出OFDM符号 ; 缓冲器临时存储OFDM符号，以便在时域中顺序发送OFDM符号至少两次; 以及产生某些频率以在与传输信道相对应的一定数量的频带中发射OFDM符号的频率发生器。
-
5.发明申请Signal reception apparatus and method for multi-band utlra-wideband communication systems 失效用于多频带宽带通信系统的信号接收装置和方法公开(公告)号：US20050037805A1
公开(公告)日：2005-02-17
申请号：US10915452
申请日：2004-08-11
申请人： Ye-hoon Lee , Seung-young Park , Yong-suk Kim , Wan-jin Kim , Woo-kyung Lee
发明人： Ye-hoon Lee , Seung-young Park , Yong-suk Kim , Wan-jin Kim , Woo-kyung Lee
CPC分类号： H04B1/71637
摘要： A signal reception apparatus and method for communication systems. The signal reception apparatus for communication systems according to the present invention is applicable to communication environments in which a plurality of sub-bands having different frequency bands are sequentially used for communications. An embodiment of the invention has a multi-band index generation unit, a multi-band frequency generation unit, a multiplication unit, a correlation signal reception unit, and a buffer unit. The multi-band index generation unit generates a multi-band index corresponding to a sub-band to which a received signal is transmitted in correspondence with the multi-band index. The multiplication unit outputs a signal obtained by multiplying the received signal by the multi-band frequency. The correlation signal reception unit integrates and outputs the signal of the multiplication unit based on an integral time set in correspondence with the multi-band index. Further, the buffer unit buffers the signal of the correlation signal reception unit to be outputted at a predetermined data rate.
摘要翻译： 一种用于通信系统的信号接收装置和方法。 根据本发明的用于通信系统的信号接收装置可应用于其中具有不同频带的多个子带被顺序地用于通信的通信环境。 本发明的实施例具有多频带索引生成单元，多频带频率生成单元，乘法单元，相关信号接收单元和缓冲单元。 多频带索引生成单元根据多频带索引生成与发送接收信号的子带对应的多频带索引。 乘法单元输出通过将接收信号乘以多频带频率而获得的信号。 相关信号接收单元基于与多频带索引相对应地设定的积分时间积分并输出乘法单元的信号。 此外，缓冲器缓冲以预定数据速率输出的相关信号接收单元的信号。
-
-
-
-
搜索结果
5 条记录 (耗时 0.035 秒)
